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2023 Changelog
ClickHouse release v22.3.18.37-lts (fe51271755
) FIXME as compared to v22.3.17.13-lts (fcc4de7e80
)
Performance Improvement
- Backported in #46372: Fix too big memory usage for vertical merges on non-remote disk. Respect
max_insert_delayed_streams_for_parallel_write
for the remote disk. #46275 (Nikolai Kochetov). - Backported in #46357: Allow using Vertical merge algorithm with parts in Compact format. This will allow ClickHouse server to use much less memory for background operations. This closes #46084. #46282 (Anton Popov).
Build/Testing/Packaging Improvement
- Backported in #45856: Fix zookeeper downloading, update the version, and optimize the image size. #44853 (Mikhail f. Shiryaev).
Bug Fix (user-visible misbehavior in official stable release)
- Backported in #45620: Another fix for
Cannot read all data
error which could happen while readingLowCardinality
dictionary from remote fs. Fixes #44709. #44875 (Nikolai Kochetov). - Backported in #45549: Fix
SELECT ... FROM system.dictionaries
exception when there is a dictionary with a bad structure (e.g. incorrect type in xml config). #45399 (Aleksei Filatov).
NOT FOR CHANGELOG / INSIGNIFICANT
- Automatically merge green backport PRs and green approved PRs #41110 (Mikhail f. Shiryaev).
- Fix wrong approved_at, simplify conditions #45302 (Mikhail f. Shiryaev).
- Get rid of artifactory in favor of r2 + ch-repos-manager #45421 (Mikhail f. Shiryaev).
- Another attempt to fix automerge, or at least to have debug footprint #45476 (Mikhail f. Shiryaev).
- Trim refs/tags/ from GITHUB_TAG in release workflow #45636 (Mikhail f. Shiryaev).
- Add check for running workflows to merge_pr.py #45803 (Mikhail f. Shiryaev).
- Get rid of progress timestamps in release publishing #45818 (Mikhail f. Shiryaev).
- Add helping logging to auto-merge script #46080 (Mikhail f. Shiryaev).
- Fix write buffer destruction order for vertical merge. #46205 (Nikolai Kochetov).